Proposal by the Informal Working Group on Simplification of Lighting and Light-Signalling Regulations (IWG SLR) to insert missing text and to correct errors in the new UN Regulation No. 148.

Proposal by the Informal Working Group on Simplification of Lighting and Light-Signalling Regulations (IWG SLR) to comprehensively revise and update UN R148 in a new series of amendments.

Proposal to allow the use of manufacturer logos inside the illuminant surface of a signalling lamp.